colordlg.cpp

wince 下的简单的颜色选择小例子

//
// Copyright (c) Microsoft Corporation.  All rights reserved.
//
//
// Use of this source code is subject to the terms of the Microsoft end-user
// license agreement (EULA) under which you licensed this SOFTWARE PRODUCT.
// If you did not accept the terms of the EULA, you are not authorized to use
// this source code. For a copy of the EULA, please see the LICENSE.RTF on your
// install media.
//
// ColorDlg.cpp : implementation file
//

#include "stdafx.h"
#include "Color.h"
#include "ColorDlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CColorDlg dialog

CColorDlg::CColorDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CColorDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CColorDlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);

	// initially: gray color
	m_nRed = m_nGreen = m_nBlue = 192;
}

void CColorDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CColorDlg)
		// NOTE: the ClassWizard will add DDX and DDV calls here
	//}}AFX_DATA_MAP
	DDX_Text(pDX, IDC_RED, m_nRed);
	DDX_Text(pDX, IDC_GREEN, m_nGreen);
	DDX_Text(pDX, IDC_BLUE, m_nBlue);
	pDX->PrepareEditCtrl(IDC_RED);
	DDV_MinMaxInt(pDX, m_nRed, 0, 255);
	pDX->PrepareEditCtrl(IDC_GREEN);
	DDV_MinMaxInt(pDX, m_nGreen, 0, 255);
	pDX->PrepareEditCtrl(IDC_BLUE);
	DDV_MinMaxInt(pDX, m_nBlue, 0, 255);
}

BEGIN_MESSAGE_MAP(CColorDlg, CDialog)
	//{{AFX_MSG_MAP(CColorDlg)
	ON_BN_CLICKED(IDC_CHOOSECOLOR, OnChooseColor)
	ON_MESSAGE(WM_CTLCOLORLISTBOX, OnColorLBox)
	ON_BN_CLICKED(IDC_APPLY, OnApply)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CColorDlg message handlers

BOOL CColorDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	CenterWindow(GetDesktopWindow());	// center to the hpc screen

	return TRUE;  // return TRUE  unless you set the focus to a control
}

// Choose Color Dialog
void CColorDlg::OnChooseColor() 
{
	CColorDialog colorDlg(RGB(m_nRed, m_nGreen, m_nBlue));

	if(colorDlg.DoModal() == IDOK)
	{
		COLORREF nColor = colorDlg.m_cc.rgbResult;
		m_nRed = nColor & 0xFF;
		m_nGreen = (nColor >> 8) & 0xFF;
		m_nBlue = (nColor >> 16) & 0xFF;
		UpdateData(FALSE);

		RefreshWindow();
	}
}


HBRUSH CColorDlg::OnColorLBox(WPARAM wParam, LPARAM lParam) 
{
  return CreateSolidBrush(RGB(m_nRed, m_nGreen, m_nBlue));
}


// Set new color
void CColorDlg::OnApply() 
{
	if(UpdateData(TRUE))
		RefreshWindow();
}


// Refresh the colored window
void CColorDlg::RefreshWindow()
{
	CWnd* pWnd = GetDlgItem(IDC_COLORFIELD);
	if(pWnd)
	{
		pWnd->Invalidate();
		pWnd->UpdateWindow();
	}
}